Add a new definition according to Pci spec 2.2

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2074 6f19259b-4bc3-4df7-8a09-765794883524

diff --git a/MdePkg/Include/IndustryStandard/pci22.h b/MdePkg/Include/IndustryStandard/pci22.h
index f150fbc1b02bd24562a00d6ae926ff2fd2ade31c..581744ff5599c1775112139e7f2c4c2e9e7af45d 100644 (file)
--- a/MdePkg/Include/IndustryStandard/pci22.h
+++ b/MdePkg/Include/IndustryStandard/pci22.h
@@ -319,6 +319,11 @@ typedef struct {
 #define PCI_BRIDGE_SECONDARY_BUS_REGISTER_OFFSET    0x19\r
 #define PCI_BRIDGE_SUBORDINATE_BUS_REGISTER_OFFSET  0x1a\r
 \r
+//\r
+// Interrupt Line "Unknown" or "No connection" value defined for x86 based system\r
+//\r
+#define PCI_INT_LINE_UNKNOWN                        0xFF               \r
+\r
 typedef union {\r
   struct {\r
     UINT32  Reg : 8;\r